“"Balanced in aggressive way" that was the impression by our mighty ljokerl on his FXT90 review. This is fairly old IEM by JVC and has been replaced by the FXT100 and FXT200/208.
Not going to write a long review about the sound quality here since F XT90 is one of the most popular among head-fier and most people agreed on just how good this IEM is.
I have been contemplating on buying FXT90...” --AzimAkbar

“ I’m not going to waste your time talking about accessories, fit, packaging, what songs I listened to or any other boring stuff because frankly none of that stuff matters when it comes to the JVC HA-FX700’s. The only thing that matters is the unbelievably good sound coming from these, so without further adieu- The sound: MASSIVE. That’s the first thought that comes...” --shotgunshane

“Introduction JVC is a company of inventors. They are well known for unique audio technologies like a speaker made of carbon implemented on JVC HA-FXC51 and the first vertical dual-dynamic drivers planted on the HA-FXT90, which I happen to own. I love the FXT90 for its aggressive and upfront sound. However at the same the FXT90 can be fatiguing after a while and I wished the FXT90 successor...” --Gandasaputra

“ Introduction Having had extensive experience with the previous Wood series of JVC, FX500 and FX700, I was exited to see what the company had planned for this next iteration. They introduced FX650 to replace the FX500 and FX750 to replace the FX700, in addition to announcing the new flagship, FX850. Thanks to user James444, I was able to hear all 3 IEMs of this new...” --Inks

“The bass is very good for the price and the driver size. The sound however, could be improved further by equalization. The highs are suprisingly good but these headphones are lacking a bit of the mids. These headphones are very lightweight and comfortable, allowing up to long hours of use.
However, I can still remember the time I took these headphones out of the box, they sounded awful....” --ryanwee9889

“
These must have been designed with some singular purpose in mind. They did not sound right to me in terms of balance, dynamics and detail. Very bass heavy. A lot of technology but ergonomics and fit suffer imo. I like the attempt and the price of these and recommend for those who like to investigate the extremes of bass heavy sound. They might be just what you're looking for, Give 'em a try,
” --thelostMIDrange

“
I just put these in my ears and the verdict is......thin sounding ;(
atleast before EQ
I bought these by request from a Head-Fi'r, and regardless of that characteristic, im still not disappointed :)
The bass reminds me of the AKG 701's, practically non present.
However, I couldn't get over how large the sound stage was and how well instruments...” --Vonx

“I bought these a year ago while on vacation at the Cabin for a month, after finding out I left my Shure SE210's on the couch while packing! I was at Best Buy, so not exactly the ideal place to be shopping, but it's slim-pickings in Alaska lol I wasn't going to pay more than $30, and most of the stuff I actually was interested in were iSheeple's iPhones, so I wasn't going to risk trying out a...” --Formula350

“I originally bought these after my earphones that came with my phone broke. After receiving these I was extremely pleased with the bass: it was boomy, punchy and felt powerful. These were also very loud and I barely had to turn up the volume. If you're into bass then these are great; however the bass seemed a little too overwhelming. The mids were fine but the highs were severely lacking and...” --Omar717

“I spent about 20 bucks on these earphones. That said, I wasn't expecting a lot from them.
The overall appearance is nice. The all metal design will appeal to some people. But the design is where the biggest flaw hides. The earbuds stick straight into the ear. When you walk they bounce up and down. This creates a wobbly sound. I am using the largest cushions that came with the phones. They...” --SexyDrZaius